Command Injection in Crestron DMC-STRO

1) Command Injection

EUVDB-ID: #VU23185

Risk: High

CVSSv3.1: 9.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2019-18184

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to a lack of input validation in the Bash Command Substitution on the "ping" command parameters. A remote attacker can execute arbitrary commands on the device on behalf of the root user.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

DMC-STRO: 1.0

External links

http://www.crestron.com/en-US/Products/Video/DigitalMedia-Modular-Matrix/Output-Cards-Blades/DMC-STRO
http://www.quantumleap.it/crestron-dmc-stro-remote-root-rce/
http://www.quantumleap.it/news/advisory/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.